NSW claim six-wicket Shield win over Qld

Alarm bells were ringing for Queensland in their six-wicket Sheffield Shield loss to unbeaten ladder leaders NSW in Brisbane on Wednesday - literally.

Set 128 to win, the Blues' decision to delay the tea break and push for the final 18 runs for victory was sabotaged by a fire alarm, set off in the NSW dressing room by Test spinner Nathan Lyon burning toast.

Tea was called with NSW 4-110 when the third umpire, scorer, players and spectators were forced to evacuate the Stuart Law Stand at Allan Border Field with rain threatening.

The Blues returned 20 minutes later to reach 4-130 and claim victory with a day to spare in their top-of-the-table clash.

NSW No.6 Daniel Hughes - who struck 98 not out in the first dig - remained unbeaten on 23 and was later named man of the match.

Test skipper Steve Smith was clearly not happy with Lyon, giving the offspinner a serve as players waited at the edge of the field for the fire drill to finish.

Lyon could later see the funny side of the incident after NSW sealed their third-straight Shield win.

"Yep, I did it (burnt toast). I got a bit bored in the change rooms," he laughed.